THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
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curl -u admin:admin -X DELETE http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/services/SERVICENAME |
Removing a Host (1.4.1)
Verified against releases 1.4.1
The preferred way to remove a host is to move the master services from the host, decommission the slave nodes and then remove the host after deleting all the host components. However, there are situations such as the host is lost and cannot be brought back online for graceful removal. Under this circumstances the following API calls can be used to clean up the host.
1. Get a list of host components mapped to the host
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curl -u admin:admin -X GET http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/hosts/HOSTNAME
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See the property, "host_components" for all the host.
Sample:
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Output:
"host_components" : [
{
"href" : "http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTERNAME/hosts/HOSTNAME/host_components/DATANODE",
"HostRoles" : {
"cluster_name" : "CLUSTERNAME",
"component_name" : "DATANODE",
"host_name" : "HOSTNAME"
}
},
{
"href" : "http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTERNAME/hosts/HOSTNAME/host_components/GANGLIA_MONITOR",
"HostRoles" : {
"cluster_name" : "CLUSTERNAME",
"component_name" : "GANGLIA_MONITOR",
"host_name" : "HOSTNAME"
}
}]
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2. DELETE all host components mapped to this host
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E.g. Delete DATANODE
curl -u admin:admin -X DELETE http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTERNAME/hosts/HOSTNAME/host_components/DATANODE
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3. DELETE the host
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curl -u admin:admin -X DELETE http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTERNAME/hosts/HOSTNAME
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